How can it possibly be cheaper for a contractor with no local presence (as far as I know) to provide rail switching service for the refinery, than one whose established base of operations and mechanical facilities is just a few miles down the line? SMS is still at Pureland, Dupont Chambers Works, and Eagle Point-- and on the other side of the river, the industrial park in Morrisville. For an outside provider with no facilities or equipment in the region, relying on personnel specifically relocated here to perform and supervise the work, and having to pay a third party for mechanical repairs and maintenance-- I don't see how the cost of providing the service could possibly be less. This may be about more than just money.